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Abstract #2336

Exploring the effect of elevated maternal BMI on image quality in fetal MRI

Kathleen Elizabeth Colford1, Daniel Cromb1, Zoe Hesketh1, Tom Finck1,2, Ayse Ceren-Tanritanir1,3, Serena Counsell1, and Mary Rutherford1,4
1Centre for the Developing Brain, School of Biomedical Engineering & Imaging Sciences, Kings College London, London, United Kingdom, 2Department of Diagnostic and Interventional Neuroradiology, Klinikum rechts der Isar der Technischen Universität München, Munich, Germany, 3Guys and St. Thomas’s NHS Foundation Trust, London, United Kingdom, 4MRC Centre for Neurodevelopmental Disorders, King’s College London, London, United Kingdom

Synopsis

Keywords: Fetal, Data Analysis, Maternal BMI, Signal to Noise RatioWe assessed SNR (signal-to-noise-ratio) against elevated maternal BMI in fetal brain/body MRI imaging to examine if SNR decreases both objectively/subjectively, and if MRI could be an alternative imaging modality in prenatal care. Spearman’s Correlation-Rank coefficient was used to identify relationships between SNR measurements in ROI’s and maternal BMI. There’s a negative downward trend between maternal BMI and SNR seen for all fetal ROIs (particularly in regions more susceptible to SNR); subjective assessment didn’t identify any association between BMI and image quality. Our results suggest that MRI is a viable alternative to ultrasound in pregnant women with elevated BMI.

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